Real knowledge is to know the extent of one's ignorance.

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If ignorance is bliss, why isn't the world happier?

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Truth will always be truth, regardless of lack of understanding, disbelief or ignorance.

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The comfort of the rich depends upon an abundant supply of the poor. - Voltaire

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Ignorance can be cured, but stupidity is forever.

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Talk, talk, talk: the utter and heartbreaking stupidity of words.

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The supreme crime of the church to-day is that everywhere and in all its operations and influences it is on the side of sloth of mind; that it banishes brains, it sanctifies stupidity, it canonizes incompetence.

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We spend a great deal of time studying history, which, let’s face it, is mostly the history of stupidity. So

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Humility and knowledge in poor clothes excel pride and ignorance in costly attire.

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stupidity is one of the two things we see most clearly in retrospect. The other is missed chances.

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